کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5788186 | 1642153 | 2017 | 59 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The Neogene genus Streptochilus (Brönnimann and Resig, 1971) from the Gulf of California
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فسیل شناسی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Four species of the planktonic foraminiferal genus Streptochilus from key Neogene marine localities are documented in relation to the evolution of the Gulf of California: S. globigerus, S. latus, S. macdougallae sp. nov., and S. inglei sp. nov. Planktonic foraminiferal bioevents and strontium isotopes in the Bouse, Tirabuzón, Carmen and Ojo de Buey lithostratigraphic units constrain the local distribution range between 6 and 5.3Â Ma for the last three species, whereas S. globigerus appears locally at 5.5Â Ma and disappears between 3.79 and 3.46Â Ma in the Imperial and Trinidad Formations. The last occurrence of Streptochilus latus, and the first and last occurrences of S. globigerus in the ancient Gulf of California are correlated with bioevents calibrated in the equatorial Pacific; therefore, they can be used as reliable local biostratigraphic markers. The presence of Streptochilus in the ancient Gulf of California seems to correlate with upwelling, in a pattern similar to that observed in the modern oceans.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Marine Micropaleontology - Volume 132, April 2017, Pages 35-52
Journal: Marine Micropaleontology - Volume 132, April 2017, Pages 35-52
نویسندگان
Adriana Yanet Miranda-MartÃnez, Ana Luisa Carreño, Kristin McDougall,